-81.68% is the change from 513 to 94
Calculation steps:
[( 94 - 513 ) ÷ 513] x 100 = -81.68%
Formula
Percentage change = [(94 - 513) / 513] x 100
Subtract the new number by the original number
94 - 513 = -419
-419 ÷ 513 = -0.8167641325536062
-0.8167641325536062 x 100 = -81.68%